CN205841767U - Supercritical fluid device dry gas seals - Google Patents
Supercritical fluid device dry gas seals Download PDFInfo
- Publication number
- CN205841767U CN205841767U CN201620611746.0U CN201620611746U CN205841767U CN 205841767 U CN205841767 U CN 205841767U CN 201620611746 U CN201620611746 U CN 201620611746U CN 205841767 U CN205841767 U CN 205841767U
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- ring
- stationary
- stationary ring
- dry gas
- seat
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Abstract
This utility model relates to technical field of sealing technology, particularly to a kind of Supercritical fluid device dry gas seals, including the stationary seat being fixedly mounted on apparatus casing, stationary ring chamber it is provided with on stationary seat, and it is arranged on stationary ring and the elastic parts of stationary ring intracavity, with the rotating ring being set in rotating shaft and clamping sleeve, described rotating ring is fixedly mounted in rotating shaft by clamping sleeve, described elastic parts acts on the end face of stationary ring one end, the seal face making stationary ring and rotating ring closely cooperates, the slide rail of protrusion it is provided with stationary ring on the inner peripheral surface matched on described stationary seat, on stationary ring, corresponding outer circumferential end face is provided with the chute matched with described slide rail.Structure, the stationary ring of stationary seat are optimized by this utility model with the mounting means of rotating ring, make this dry gas sealing structure simple, install compacter, and to meet, equipment volume is little, seal the requirement that installation dimension is limited；Use the spacing guiding connected mode between stationary seat and throw-out collar, stationary ring, it is ensured that the sealing property of dry gas seals simultaneously.
Description
Technical field
This utility model relates to technical field of sealing technology, close particularly to the equipment dry gas that a kind of medium is supercritical fluid
Envelope.
Background technology
Supercritical fluid has good heat stability and physical property, is not required to the highest maximum cycle temperature and i.e. can reach
The satisfied thermal efficiency, supercritical steam cycle may utilize the fluid special physical property more than critical point, reduces work done during compression, improves backheat effect
Rate, thus improve cycle efficieny.The most both at home and abroad the heat circulating system with supercritical fluid as circulatory mediator is at a high speed
Developmental stage.But owing to the usual volume of equipment that medium is supercritical fluid is relatively small, cause the dry gas sealing structure of routine
Cannot be suitable for and be installed in the type equipment.
Utility model content
The purpose of this utility model is to solve existing dry gas sealing structure and cannot be suitable for and be installed on Supercritical fluid device
Problem, it is provided that a kind of simple in construction, compact, good sealing effect, it is adaptable to the dry gas that Supercritical fluid device is installed and used
Seal.
For solving above-mentioned technical problem, this utility model have employed techniques below scheme:
A kind of Supercritical fluid device dry gas seals, including the stationary seat being fixedly mounted on apparatus casing, stationary seat
On be provided with stationary ring chamber, and be arranged on stationary ring and the elastic parts of stationary ring intracavity, and the rotating ring that is set in rotating shaft and clamping sleeve,
Described rotating ring is fixedly mounted in rotating shaft by clamping sleeve, and described elastic parts acts on the end face of stationary ring one end, make stationary ring and
The seal face of rotating ring closely cooperates, and the inner peripheral surface that described stationary seat matches with stationary ring is provided with the slide rail of protrusion, quiet
On ring, corresponding outer circumferential end face is provided with the chute matched with described slide rail.
In technique scheme, further, described stationary seat is provided with support set, stationary ring chamber be arranged on support set with
Between stationary seat, described stationary ring and elastic parts are set on support set.
In technique scheme, further, described stationary seat inner peripheral surface is provided with near one end of rotating ring at slide rail
Draw-in groove, is provided with collar in draw-in groove, a described collar part protrudes stationary seat inner peripheral surface.
In technique scheme, further, being threaded connection between described clamping sleeve and rotating shaft, clamping sleeve one end will
Rotating ring holds out against in rotating shaft.
In technique scheme, further, described elastic parts includes the spring being successively set in spring base and pushes away
Ring, described spring is arranged between spring base and throw-out collar, and throw-out collar is set on support set and is arranged between spring and stationary ring, described
The chute matched with described slide rail it is provided with on throw-out collar outer circumferential end face.
In technique scheme, further, it is provided with floating seal ring between described throw-out collar and support set.
In technique scheme, further, between described stationary seat and housing, be provided with between rotating ring and rotating shaft close
Seal.
Structure, the stationary ring of stationary seat are optimized by this utility model with the mounting means of rotating ring, make this dry gas seals
Simple in construction, installs compacter, and to meet, equipment volume is little, seal the requirement that installation dimension is limited；Use stationary seat simultaneously
And the spacing guiding connected mode between throw-out collar, stationary ring, it is ensured that the sealing property of dry gas seals.
Accompanying drawing explanation
Fig. 1 is this utility model example structure schematic diagram.
In figure: 1, housing, 2, stationary seat, 3, sealing ring, 4, collar, 5, spring, 6, stationary ring, 7, throw-out collar, 8, floating seal
Circle, 9, stationary ring chamber, 10, rotating ring, 11, clamping sleeve, 12, support set, 13, slide rail, 14, chute, 15, draw-in groove, 16, rotating shaft.
Detailed description of the invention
With specific embodiment, this utility model is further described below in conjunction with the accompanying drawings.
With reference to Fig. 1, dry gas seals in this embodiment, including stationary seat 2, stationary ring 6, rotating ring 10, spring 5 and throw-out collar 7, stationary ring
Seat 2 is fixedly mounted on apparatus casing 1, arranges stationary ring chamber 9 on stationary seat 2, and stationary ring chamber 9 is used for arranging stationary ring 6, spring 5 and
Throw-out collar 7, spring 5 and throw-out collar 7 act on stationary ring 6 as elastic parts, make the seal face of stationary ring 6 and rotating ring 10 closely join
Closing, wherein spring 5 is arranged between stationary seat 2 and throw-out collar 7, and throw-out collar 7 is arranged between spring 5 and stationary ring 6；Here stationary ring chamber
9 is to process an annular chamber on stationary seat 2, now forms a support set 12, such stationary ring 6 He on stationary seat
Throw-out collar 7 is enclosed within support set 12, and during operation, stationary ring 6 and throw-out collar 7 can be along support set 12 side-to-side movements.
In the present embodiment, rotating shaft 16 one end of Supercritical fluid device is provided with unit impeller, and rotating ring 10 is from rotating shaft 16
The other end is sleeved in rotating shaft, meanwhile, arranges clamping sleeve 11 in rotating shaft, uses screw thread even between clamping sleeve 11 and rotating shaft 16
Connecing, rotating ring 10 one end end face leans against on unit impeller, holds out against fixing by the effect of clamping sleeve 11 by rotating ring 10 in other end
In rotating shaft 16.Equally, the fixed form of this rotating ring is not only only applicable to the Supercritical fluid device described in this enforcement, right
In other rotating shafts, it is not provided with the equipment of unit impeller, can use and the similar structure such as back-up ring or key is set on axle by rotating ring
One end fixing after, the other end carries out being pressed abd fixed in rotating shaft by above-mentioned clamping sleeve.
For preventing dry gas seals stationary ring in running from rotating, and ensure the floatability of stationary ring, in the present embodiment
Use the slide rail 13 that protrusion is set on the inner peripheral surface matched on stationary seat with stationary ring, simultaneously at corresponding excircle end on stationary ring
Face arranges the chute 14 matched with above-mentioned slide rail；In the chute 14 that slide rail 13 on stationary seat extend on stationary ring, by cunning
Realize the anti-rotation of stationary ring coordinating between rail with chute, and can realize when stationary ring occurs under the effect of elastic parts and rotating ring
During side-to-side movement, stationary ring is played an effect guided by slide rail, thus ensures that the seal face of stationary ring and rotating ring is in elastic group
Remain under the effect of part and closely cooperate.
Arranging draw-in groove 15 on stationary seat inner peripheral surface, draw-in groove 15 is positioned at slide rail one end near rotating ring, in draw-in groove 15
Arranging collar 4, collar 4 part protrudes stationary seat inner peripheral surface；Now collar protrude above the part of stationary seat inner peripheral surface play right
The effect that the axially-movable of stationary ring is spacing.
As preferably, in the present embodiment, the outer circumferential end face of throw-out collar 7 arranges the chute matched with above-mentioned slide rail 13
14, equally, it is connected between slide rail and chute, throw-out collar is played the effect of positioning and guiding, it is ensured that act on and act on stationary ring
The stability of power.
As preferably, in the present embodiment, throw-out collar 7 is enclosed within support set 12, arranges floating between throw-out collar 7 and support set 12
Sealing ring 8；Can also between stationary seat 2 and housing 1, between rotating ring 10 and rotating shaft 16, sealing ring 3 is set, to carry further
The sealing property of high dry gas seals.
In the present embodiment, it is connected by chute and slide rail between stationary ring and stationary seat, it is achieved the location of circumference and axle
To guiding；Stationary seat is directly bolted on apparatus casing, and the static element of dry gas seals is arranged on stationary seat
On stationary ring intracavity so that whole dry gas sealing structure is compacter.It addition, the construction features of bonding apparatus, use and compress
Rotating ring is directly fixed by set, it is not necessary to arranges axle sleeve in rotating shaft, is effectively reduced the radial direction installation dimension of dry gas seals,
It is made to be applicable to volume, seal the equipment that installation dimension is less.
Rotating ring when mounted, is first fixedly mounted in rotating shaft by the present embodiment by clamping sleeve, then by spring, throw-out collar and
Stationary ring is in turn mounted in stationary seat, loads onto collar and prevents stationary ring from ejecting in stationary seat；Then stationary seat is solid by bolt
Surely it is connected on apparatus casing.
Specification and drawings of the present utility model is considered as illustrative and not restrictive, on this utility model basis
On, those skilled in the art are according to disclosed technology contents, it is not necessary to performing creative labour just can be to some of them technology
Feature is made some and is replaced and deformation, all in protection domain of the present utility model.
Claims (7)
1. Supercritical fluid device dry gas seals, it is characterised in that: include the stationary seat being fixedly mounted on apparatus casing, quiet
It is provided with stationary ring chamber in ring seat, and is arranged on stationary ring and the elastic parts of stationary ring intracavity, and the rotating ring that is set in rotating shaft and pressure
Tight set, described rotating ring is fixedly mounted in rotating shaft by clamping sleeve, and described elastic parts acts on the end face of stationary ring one end, makes quiet
The seal face of ring and rotating ring closely cooperates, and the inner peripheral surface that described stationary seat matches with stationary ring is provided with the cunning of protrusion
Rail, stationary ring is provided with, at corresponding outer circumferential end face, the chute matched with described slide rail.
Supercritical fluid device dry gas seals the most according to claim 1, it is characterised in that: arrange on described stationary seat
Having support set, stationary ring chamber to be arranged between support set and stationary seat, described stationary ring and elastic parts are set on support set.
Supercritical fluid device dry gas seals the most according to claim 1 and 2, it is characterised in that: in described stationary seat
At slide rail, one end of rotating ring being provided with draw-in groove on side face, be provided with collar in draw-in groove, a described collar part protrudes stationary ring
Seat inner peripheral surface.
Supercritical fluid device dry gas seals the most according to claim 1, it is characterised in that: described clamping sleeve and rotating shaft
Between be threaded connection, rotating ring is held out against in rotating shaft by clamping sleeve one end.
Supercritical fluid device dry gas seals the most according to claim 2, it is characterised in that: described elastic parts includes
The spring being successively set in spring base and throw-out collar, described spring is arranged between spring base and throw-out collar, and throw-out collar is set in support
Put and be arranged between spring and stationary ring, described throw-out collar outer circumferential end face is provided with the chute matched with described slide rail.
Supercritical fluid device dry gas seals the most according to claim 5, it is characterised in that: described throw-out collar and support set
Between be provided with floating seal ring.
Supercritical fluid device dry gas seals the most according to claim 1, it is characterised in that: described stationary seat and housing
Between, be provided with sealing ring between rotating ring and rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620611746.0U CN205841767U (en) | 2016-06-20 | 2016-06-20 | Supercritical fluid device dry gas seals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620611746.0U CN205841767U (en) | 2016-06-20 | 2016-06-20 | Supercritical fluid device dry gas seals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205841767U true CN205841767U (en) | 2016-12-28 |
Family
ID=58152720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620611746.0U Active CN205841767U (en) | 2016-06-20 | 2016-06-20 | Supercritical fluid device dry gas seals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205841767U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909798A (en) * | 2016-06-20 | 2016-08-31 | 成都通密封股份有限公司 | Dry gas seal for supercritical fluid equipment |
-
2016
- 2016-06-20 CN CN201620611746.0U patent/CN205841767U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909798A (en) * | 2016-06-20 | 2016-08-31 | 成都通密封股份有限公司 | Dry gas seal for supercritical fluid equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |